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ESE ME 2018 Achiever Study Plan: Machine Design Quiz 2
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Question 1
In spiral bevel gears, the axes are
Question 2
A spur gear transmits 10 kW at a pitch line velocity of 10 m/s; driving gear has a diameter of 1.0m. find the tangential force between the driver and the follower, and the transmitted torque respectively.
Question 3
Who postulated the maximum distortion energy theory _________?
Question 4
Match List-I (theory of Failure) with List-II (predicted Ratio of Shear Stress to Direct Stress at yield Condition for Steel Specimen) select the correct answer using the code given below the lists:
List-I
A). Maximum shear Stress theory
B). Maximum energy of distortion theory
C). Maximum principle stress theory
D). Maximum principle strain theory
List-II
1). 1.0
2). 0.77
3). 0.577
4). 0.50
List-I
A). Maximum shear Stress theory
B). Maximum energy of distortion theory
C). Maximum principle stress theory
D). Maximum principle strain theory
List-II
1). 1.0
2). 0.77
3). 0.577
4). 0.50
Question 5
Assertion (A): The Lewis equation for design of involute gear tooth predicts the static load capacity of a cantilever beam of uniform strength.
Reason (R):For a pair of gears in mesh, pressure angle and module must be same to satisfy the condition of interchange ability and correct gearing.
Reason (R):For a pair of gears in mesh, pressure angle and module must be same to satisfy the condition of interchange ability and correct gearing.
Question 6
For a proper design and longer gear life
Question 7
The principal stresses at a point inside a solid object are σ1 = 100 MPa, σ2= 100 MPa and σ3= 0 MPa. The yield strength of the material is 200 MPa. The factor of safety calculated using Tresca (maximum shear stress) theory is nT and the factor of safety calculated using von Mises (maximum distortional energy) theory is nV. Which one of the following relations is TRUE?
Question 8
The two shafts AB and BC, of equal length and diameters d and 2d, are made of the same material. They are joined at B through a shaft coupling, while the ends A and C are built-in (cantilevered). A twisting moment T is applied to the coupling. If TA and TC represent the twisting moments at the ends A and C, respectively, then
Question 9
In a metal forming operation when the material has just started yielding, the principal stresses are
Following Von Mises criterion, the yield stress is ________ MPa.
Following Von Mises criterion, the yield stress is ________ MPa. Question 10
The principal stresses at a point in a critical section of a machine component are 
For the material of the component, the tensile yield strength is 
According to the maximum shear stress theory, the factor of safety is
For the material of the component, the tensile yield strength is According to the maximum shear stress theory, the factor of safety is - 437 attempts
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Jul 24ESE & GATE ME
